A) transportation of nitrogen throughout the body B) transportation of food, water and oxygen to tissues and cells C) elimination of carbon dioxide from tissues and cells D) elimination of waste from tissues and cells
A) toward B) away from C) around D) all over
A) around B) toward C) away from D) all over
A) artery B) vein C) aorta D) capillary
A) white blood cells B) plasma C) red blood cells D) platelets
A) plasma B) red blood cells C) white blood cells D) platelets
A) platelets B) plasma C) white blood cells D) red blood cells
A) vena cava B) aorta C) atria D) ventricle
A) atria B) aorta C) vena cava D) ventricle
A) liver B) brain C) lungs D) heart
A) storage of fat and calcium B) temperature regulation C) protect against infection D) transport oxygen
A) digestive system B) skeletal system C) respiratory system D) excretory system
A) atria B) ventricles C) plasma D) valves
A) 3 pumps B) 2 pumps C) 1 pump D) 4 pumps
A) hydrogen and carbon dioxide B) nitrogen and oxygen C) oxygen and hydrogen D) oxygen and carbon dioxide |